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crwdns2892124:0crwdnd2892124:0MacBook Pro 15" Unibody 2.53 GHz Mid 2009 Battery Replacementcrwdnd2892124:0crwdne2892124:0

crwdns2892146:0Jeff Suovanencrwdnd2892146:0crwdne2892146:0

crwdns2875918:0crwdne2875918:0 crwdns2892120:0crwdne2892120:0 Jeff Suovanen

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Introduction
Replacing the battery on your MacBook Pro 15" Unibody 2.53 GHz requires a 1.5 mm flathead screwdriver to remove the five-point Pentalobe screws securing it to the upper case.
Use this guide to replace an old or faulty battery. If your battery is swollen, [[What to do with a swollen battery|take appropriate precautions|new_window=true]].
Summary
If your battery no longer holds a charge, use this guide to replace it.